51, just like all the other isotopes of Antimony.
The amount of protons does not change in any of the isotopes of any element.
If it were to it would be a different element.
Osmium has as many protons as it needs
2 protons
It has 26 protons.
39 protons
26 protons
Bohrium has 107 protons.
how many protons does the carbonate ion have?
Beryllium has 4 protons
Livermorium has 116 protons.
Californium has 98 protons.
None -- all protons are protons, which are different from neutrons.
Flerovium has 114 protons.